Analytical Computation of End-Coil Leakage Inductance of Round-Rotor Synchronous Machines Field Winding
The computation of end-coil leakage inductances of electric machines is a challenging task due to the complicated leakage flux 3-D distribution in the winding overhang region. In this paper, the problem of computing the field-circuit leakage inductance of round-rotor synchronous machines is addresse...
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| Veröffentlicht in: | IEEE transactions on magnetics 2016-02, Vol.52 (2), p.1-10 |
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| creator | Bortolozzi, Mauro Tessarolo, Alberto Bruzzese, Claudio |
| description | The computation of end-coil leakage inductances of electric machines is a challenging task due to the complicated leakage flux 3-D distribution in the winding overhang region. In this paper, the problem of computing the field-circuit leakage inductance of round-rotor synchronous machines is addressed. The proposed method is fully analytical and descends from the symbolical solution of Neumann integrals applied to the computation of self-inductance and mutual inductance combined with the method of mirror images to account for core effects. With respect to existing analytical approaches, the methodology requires neither numerical integral solutions nor discretizing the end-coil geometry into small straight elements. The accuracy of the proposed technique for computing the mutual inductance between two single-end turns is assessed against measurements on a dedicated experimental setup. The extension of the method to the computation of the entire field-circuit end-coil leakage inductance is assessed by comparing with the 3-D finite-element analysis. |
| doi_str_mv | 10.1109/TMAG.2015.2480701 |
| format | Article |
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In this paper, the problem of computing the field-circuit leakage inductance of round-rotor synchronous machines is addressed. The proposed method is fully analytical and descends from the symbolical solution of Neumann integrals applied to the computation of self-inductance and mutual inductance combined with the method of mirror images to account for core effects. With respect to existing analytical approaches, the methodology requires neither numerical integral solutions nor discretizing the end-coil geometry into small straight elements. The accuracy of the proposed technique for computing the mutual inductance between two single-end turns is assessed against measurements on a dedicated experimental setup. The extension of the method to the computation of the entire field-circuit end-coil leakage inductance is assessed by comparing with the 3-D finite-element analysis.</description><identifier>ISSN: 0018-9464</identifier><identifier>EISSN: 1941-0069</identifier><identifier>DOI: 10.1109/TMAG.2015.2480701</identifier><identifier>CODEN: IEMGAQ</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Analytical methods ; Computational modeling ; field windings ; Finite element analysis ; Inductance ; leakage inductance computation ; Magnetism ; method of mirror images ; Neumann integrals ; Rotors ; round-rotor synchronous machines ; Solid modeling ; Stator cores ; Three-dimensional displays ; Windings</subject><ispartof>IEEE transactions on magnetics, 2016-02, Vol.52 (2), p.1-10</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2016</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c336t-1696877f927a1812c2f67bc50e08aee4ea348cd7aed2eb5adb3c09b6e0feb77c3</citedby><cites>FETCH-LOGICAL-c336t-1696877f927a1812c2f67bc50e08aee4ea348cd7aed2eb5adb3c09b6e0feb77c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/7273909$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/7273909$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Bortolozzi, Mauro</creatorcontrib><creatorcontrib>Tessarolo, Alberto</creatorcontrib><creatorcontrib>Bruzzese, Claudio</creatorcontrib><title>Analytical Computation of End-Coil Leakage Inductance of Round-Rotor Synchronous Machines Field Winding</title><title>IEEE transactions on magnetics</title><addtitle>TMAG</addtitle><description>The computation of end-coil leakage inductances of electric machines is a challenging task due to the complicated leakage flux 3-D distribution in the winding overhang region. In this paper, the problem of computing the field-circuit leakage inductance of round-rotor synchronous machines is addressed. The proposed method is fully analytical and descends from the symbolical solution of Neumann integrals applied to the computation of self-inductance and mutual inductance combined with the method of mirror images to account for core effects. With respect to existing analytical approaches, the methodology requires neither numerical integral solutions nor discretizing the end-coil geometry into small straight elements. The accuracy of the proposed technique for computing the mutual inductance between two single-end turns is assessed against measurements on a dedicated experimental setup. The extension of the method to the computation of the entire field-circuit end-coil leakage inductance is assessed by comparing with the 3-D finite-element analysis.</description><subject>Analytical methods</subject><subject>Computational modeling</subject><subject>field windings</subject><subject>Finite element analysis</subject><subject>Inductance</subject><subject>leakage inductance computation</subject><subject>Magnetism</subject><subject>method of mirror images</subject><subject>Neumann integrals</subject><subject>Rotors</subject><subject>round-rotor synchronous machines</subject><subject>Solid modeling</subject><subject>Stator cores</subject><subject>Three-dimensional displays</subject><subject>Windings</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kE1Lw0AQhhdRsFZ_gHhZ8Jw6m6_NHktoa6FFqBWPy2YzabemuzWbHPrvTWjxNLzM8w7MQ8gzgwljIN626-liEgJLJmGcAQd2Q0ZMxCwASMUtGQGwLBBxGt-TB-8PfYwTBiOym1pVn1ujVU1zdzx1rWqNs9RVdGbLIHempitUP2qHdGnLTrfKahzWG9f1wMa1rqGfZ6v3jbOu83St9N5Y9HRusC7pt7GlsbtHclep2uPTdY7J13y2zd-D1cdimU9XgY6itA1YKtKM80qEXLGMhTqsUl7oBBAyhRijiuJMl1xhGWKRqLKINIgiRaiw4FxHY_J6uXtq3G-HvpUH1zX9j14yngiI0gSynmIXSjfO-wYreWrMUTVnyUAOPuXgUw4-5dVn33m5dAwi_vM85JEAEf0BocVyXQ</recordid><startdate>201602</startdate><enddate>201602</enddate><creator>Bortolozzi, Mauro</creator><creator>Tessarolo, Alberto</creator><creator>Bruzzese, Claudio</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>201602</creationdate><title>Analytical Computation of End-Coil Leakage Inductance of Round-Rotor Synchronous Machines Field Winding</title><author>Bortolozzi, Mauro ; Tessarolo, Alberto ; Bruzzese, Claudio</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c336t-1696877f927a1812c2f67bc50e08aee4ea348cd7aed2eb5adb3c09b6e0feb77c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Analytical methods</topic><topic>Computational modeling</topic><topic>field windings</topic><topic>Finite element analysis</topic><topic>Inductance</topic><topic>leakage inductance computation</topic><topic>Magnetism</topic><topic>method of mirror images</topic><topic>Neumann integrals</topic><topic>Rotors</topic><topic>round-rotor synchronous machines</topic><topic>Solid modeling</topic><topic>Stator cores</topic><topic>Three-dimensional displays</topic><topic>Windings</topic><toplevel>online_resources</toplevel><creatorcontrib>Bortolozzi, Mauro</creatorcontrib><creatorcontrib>Tessarolo, Alberto</creatorcontrib><creatorcontrib>Bruzzese, Claudio</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on magnetics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Bortolozzi, Mauro</au><au>Tessarolo, Alberto</au><au>Bruzzese, Claudio</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Analytical Computation of End-Coil Leakage Inductance of Round-Rotor Synchronous Machines Field Winding</atitle><jtitle>IEEE transactions on magnetics</jtitle><stitle>TMAG</stitle><date>2016-02</date><risdate>2016</risdate><volume>52</volume><issue>2</issue><spage>1</spage><epage>10</epage><pages>1-10</pages><issn>0018-9464</issn><eissn>1941-0069</eissn><coden>IEMGAQ</coden><abstract>The computation of end-coil leakage inductances of electric machines is a challenging task due to the complicated leakage flux 3-D distribution in the winding overhang region. In this paper, the problem of computing the field-circuit leakage inductance of round-rotor synchronous machines is addressed. The proposed method is fully analytical and descends from the symbolical solution of Neumann integrals applied to the computation of self-inductance and mutual inductance combined with the method of mirror images to account for core effects. With respect to existing analytical approaches, the methodology requires neither numerical integral solutions nor discretizing the end-coil geometry into small straight elements. The accuracy of the proposed technique for computing the mutual inductance between two single-end turns is assessed against measurements on a dedicated experimental setup. 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| subjects | Analytical methods Computational modeling field windings Finite element analysis Inductance leakage inductance computation Magnetism method of mirror images Neumann integrals Rotors round-rotor synchronous machines Solid modeling Stator cores Three-dimensional displays Windings |
| title | Analytical Computation of End-Coil Leakage Inductance of Round-Rotor Synchronous Machines Field Winding |
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